Hydrostatic press.



HYnnosTATlc Pness.

(Applicatiop filed Aug. 30,y 1901.)

(No Model.) 2 Sheets-Sheen? l.

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In Ue [01? TME Nonms PETERS cc: mom-pmol. WASHINGTON c Nu. 7|o,o39.Patentedsept. 3o, |9112.

W. D.` BUTT.

H YDBOSTATIC PRESS. (Appliction mad Aug. ao, 1901.) {No Model.)

2 s'heet'g-vshet. 2.

UNITED STATES PA-TENT @lerici-.3.

VILLIAM D. BUTT, OF KANSAS CITY, MISSOURI.

HYDROSTATIC PRESS.

SPECIFICATION forming part of YI etters Patent No. 710,039, datedSeptember 30, 1902.

Application filed August 30, 1901. Serial. No. 73,820. (No model.)

T0 LLZZ whom zit may concern.-

Beit known that I, WILLIAM D. BUTT, a citizen ofthe United States ofAmerica, residing at Kansas City, in the county of Jackson and State ofMissouri, have invented certain new and useful Improvements inHydrostatic Presses; and I do hereby declare that the following is afull, clear, and exact description ot the invention, such as will enableothers to make and use the same, reference being had to the accompanyingdrawings, forming a part of this specification.

The object of my invention primarily is in the ooaction ot'high-pressure Iinids within a hydrostatic press to obtain quickercompression and the reuse of the `I'luids without .wasteg second, therelease of the pressure automatically, and, third, the reciprocal actionof the low pressure ofthe fluids upon the piston.

The invention consists in the novel construction and combination ofparts, such as will be first fully described, and specifically pointedout in the claims.

In the drawings, Figure 1 is a plan view of the novel invention, aport-ion of the pumpcylinder being broken away to show the piston andits rod. Fig. 2 is a side View ot the invention as seen in Fig. 1. Fig.3 is an end View of the press-cylinder, taken from the rear end andshowing the valve-releasing cylinder and the fluid-conducting pipes insection. Fig. et is a sectional view of the valvereleasing cylinder.Fig. 5 is a detail view in perspective of a portion of the power-shaft,showing one of the combined clutch-wheels and eccentrics, and themovable parts of the clutch keyed on the shaft and the operatinglever.Fig. G is a view of the opposite side of the clutch-wheel to that seenin Fig. 5. Figs. 7 and 8 are detail horizontal sectional views of thethree-way valves, showing the position of the ports.

Similar letters of reference indicate correspending parts in all thefigures -ot the drawings. V

Re! erring tothe drawings, A represents the double-acting hydrostaticpress-cylinder supported by a base B, of which cylinder ct and o are theheads at the respective forward and rear ends thereof.

C is the piston, and c the piston-rod, which extends through the head aof the cylinder, and upon .its outer end a short distance from the outersurface of head a is a head or compression block D of an ordinarymaterial compressing or baling press, which block moves forward andbackward upon the guides d d, arranged in position in a parallel linewith the lower portion b of the base B.

E represents a double-acting low-pressurefiuid pump, which is supportedby a base c and arranged in position a short distance in rear of therear end of cylinder A. Upon the rear end of cylinder E is an ordinarystufting-box e2. Within the cylinder E is a piston es, with which isconnected one end of a piston-rod e4, which rod extends through thestuffing-box c2 and a short distance beyond theouterend of thestuftlng-boxandis forked at e5.

With the eduction-opening located in the side of the cylinder A and nearits forward end is connected the forward end of a suction-pipe F, uponwhich is an elbow f, the rear end of which pipe extends parallel withthe side of cylinder A and past the rear end of said cylinder and alongthe s ide of the cylinder E corresponding to that of cylinder A, withwhich it is connected, and to a position near the line of the rear endof cylinder E and is closed at said rear end. Extending from the innerside and rear end of the suction-pipe F are branch pipes f f', which areconnected with the induction-openingsin said cylinder E near its forwardand rear ends. In said branch pipes f f' are check-valves f2. With theinner side of the suction-pipe F, opposite the cylinder A, Ais connectedone end of branch pipe f3, the other end of which pipe is connected withthe eduction-opening in said cylinder A near the rear end of saidcylinder and a short distance forward of the head ct. In thesuction-pipe F yat the point of connection of the branch pipe f3 withsaid pipe is a three-way-valve f4, 0i' ordinary construction, withwhichvalve is connected one end of a valve-operating stem or rod f5, theother end of which rod extends in an upward direction a short distanceabove the plane oi' the top of cylinder A and upon which end is a crankf6, which is automatically actuated, as hereinafter described.

Upon the other side of cylinder A to that having the suction-pipe F isan induction or Huid-supply pipe G. Upon the forward end of pipe G is anelbow g, which is connected with the side of cylinder A near the forwardend of said cylinder at a point directly opposite the forward connectingend of pipe F. In the elbow g is a check-valve g. The rear end of pipe Gextends parallel with the cylinder A and along the side of thepump-cylinder E opposite to that having pipe F and to a position nearthe line of the rear end of said pump-cylinder and is closed at saidrear end. With the inner side of the rear end of pipe G is connected oneend of the branch pipes g2 g2, the other ends of which pipes areconnected with the eduction-opeuings in the sides of cylinder E near therespective forward and rear ends of the said cylinder. In each branchpipe g2 g2 is a check-valve g3. With the inner side of the pipe Gopposite the cylinder A is connected one end of a branch pipe g4, theother end of which pipe is connected with the induction-opening locatednear the rear end of said cylinder and a short distance forward of therear head a. In the pipe G at the point of connection of the said branchpipe g4 is a three-way valve g5, the valve stem or rod g of whichextends upwardly to a height corresponding to the valve stem or rod f5,and upon said end is a crank gT. In the branch pipe g4 is a checkvalveg8.

H represents the high-pressure single-acting pump adjacent to the sideof the pump E, having the pipe G, the cylinder of which is small in sizeand comparativelyless than onethird the size of the cylinder of the pumpE. In the pump H is a piston 7L and a piston-rod 7L', which extendsthrough the rear end of the cylinder and a short distance from the outerend of the stufling-box h2 on said end and is forked at h3. Tit-h theind uctionopening in the side and forward end of the pump l'I isconnected one end of a suction-pipe 7b4, the other end of which pipeextends beneath the pipe G, thencein the direction of pipe F,and alongthe side of cylinder A beneath the said pipe F, and upon said end is anelbow h5; which is connected with the side ofthe cylinder A at a point ashort distance in rear of a vertical line extending through the elbowfof pipe F. In the elbow h5 is a check-valve h6. In the end of pipe 7L",near the pump H, is a check-Valve 7z \Vith the eduction-opening to pumpH upon the other side of pump H, which is directly opposite theinductionopening, is connected one end of a pipe hi", which is smallerin size than the pipe 7L, the other end of which pipe ha extends abovethe pipe G in the direction of the rear end of the cylinder A and isextended upwardly to a position a short distance above the line of thetop of said cylinder, and upon said end is an elbow 7L, which connectswith the said cylinder a short distance forward of its rear end. In thepipe 7x8, adjacent to the cylinder H, is a check-valve h2o.

Upon the top of cylinder A in the direction of its rear end is rigidlyconnected a short valve-releasing cylinder I, which extends in thelongitudinal direction of said cylinder A. Vithin said cylinder I is apiston t'. Through the forward end of the cylinder I extends apiston-rod i', which is connected rigidly with the piston t'. Within theforward end of the cylinder I is a spiral spring i2, the tension ofwhich in compression will require an equal fluid-pressure to operate thepiston to that exerted within the cylinder A. With the rear end of thecylinder I is connected one end of a pipe 3, the other end of which pipe3 is connected with the elbow 7L9 of the pipe 7L8, extending within thetop of the cylinder A. In the side and rear end of the cylinder I is aleak-opening 7L10. Upon the top of the cylinder A in the direction ofthe forward end of said cylinder is a fixed support 7s, which extends ashort distance in height,and upon its upper end is pivotally connected acircular plate or horizontal disk K. With the upper surface and one sideof disk K,near its circumference, is pivotally connected one end of arod 7a2, the other end of which rod is pivotally connected at 7a3 withthe outer end of the crank-army6 of the valve-stemf5,which arm isextended in a direction in rear of a vertical line extending through thebranch pipef3 and which at the same time opens the pipe F for thepassage of the fluid. With the other side and upper surface of disk K ispivoted at 7,;4 one end of a rod 71:5, which is slightly longer than rod7a2, the other end of which rod 705 is pivotally connected at 7i:G tothe outer end of the crank-arm g7 on the valve stem or rod gi, whichcrankarm is extended forward of a vertical line extending through thebranch pipe g4 when the three-way valve with which it is connected is ina normally opened position to the branch pipe g4 and which valve at thesame time closes the passage of fluids to the forward end of pipe G.With the under surface of the disk K and the portion of said disk inrear of its pivotal point of connection with the support K andeccentrically to the pivotal points of the forward ends of the rods 7a27.55 is connected pivotally the outer end of the piston-rod 'L" of thevalve-operating cylinder I.

In rear of the pumps E and II is a lineshaft Ll, which is supported ina, transverse direction to the said pumps and journalcd upon the upperends of the series of standards L2 L2, arranged in position near theends of shaft L and also intermediate said ends.

Upon shaft L', opposite the rear end of pump E, is a combined eccentricplate and clutch L of the ordinary well-known description, the movablepart Z of which is keyed on shaft L' and is operated by the lever M.Over the eccentric-plate 7' extends the ring Z2, with which ring isconnected the eccentricrod Z3, which is pivotally connected with theforked end ci of the piston-rod e4 of pump E.

Upon shaft L in rear of the high-pressure IOO IIO

pump H is a combined eccentric plate and clutch N, which is the same asthe eccentric plate and clutch L, the movable part of the clutch beingoperated by a lever similar to To the lever M. -With the eccentric-ring'n on the eccentric-plate n is an eccentric-rod n2, which is pivotallyconnected with the forked end h3 of the piston-rod h' of the pump H.

Upon the end of shaft L is a pulley O, over which extends one end ofbelt o, the other end of which belt extends over the beltpulley upon theengine(n`ot shown) and the two ends of the belt connected together vinthe usual manner.

In the top of the cylinder A, near each end of `said cylinder, areseparate openings pp for the fluid, which are closed by the screwplugs PP.

In the operation of the invention the plugs P P in cylinder A areremoved and the fluid supplied to the cylinder in any convenient manneron opposite sides of the piston C. Power being applied to shaft L fromthe engine the lever M on shaft L is then operated to throw the part linto engagement with the eccentric plate Z and the piston e3 caused tomove slowly and draw the fluid through the suction-pipe F into pump Eduring the time the supply of fluid is being maintained to the cylinderA. When the cylinders A and E are each filled with the iiuid to nearlytwo-thirds their capacity, the plugs P P are replaced in the openings pp in the cylinder A. The lever M is then operated to disengage theclutch Z from the eccentric plate Z@ and the action of pump E isarrested. The lever M being operated to throwthe clutch into engagementwith the eccentric plate fn. motion is imparted through the piston-rodn2 to the piston h in the high-pressure pump H, which action draws asufficient quantity of the iiuid through the suction-pipe h4 from theforward end of cylinder A, to be utilized at the proper time. The leverM is then operated to disengage the clutch, and the operation of'thehigh-pressure pump ceases and remains normally inactive until the propertime for imparting the powerof its iiuid agent to the cylinder A. Thematerial to be compressed or the resist-ance to be overcome being placedagainst the compression-plate D, the lever M is operated to set inymotion the piston e3 of the pump E, and the fluid is drawn from theforward end of cylinder A, through the suction-pipe F, into thepump-cylinder E, through the branch pipes f f' on opposite sides of thepiston at each'stroke, the threeway valve f4, as before stated, cuttingoff th'e passage of the fiuid from the rear end of cylinder A throughthe branch pipe f3 and the check-valves f2 f2 from its back pressure orreturn to the pipe F from cylinder E. The iiuid in cylinder E isdisplaced by the piston e3 and forced through the branch eductionpipesg2 g2 to the supply-pipe G, thence to the rear end of the cylinder Athrough vthe branch pipe g4 at each stroke of the piston, the three-wayvalve g5, as before stated, cutting o the passage in its normal positionto the forward end of the pipe G, the checkvalve g8 preventing too greata back pressure in the branch pipe g4, and piston C in cylinder A isforced to about two-thirds the distance toward the forward end of thecylinder, and the compression-plate D moved forward to compressinitially the material. At this juncture the lever M is operated todisconnect the clutch and stop the action of the pump E andthe lever Moperated to set in motion the piston h of pump H, the fluid in which isforced through the small pipe hs, imparting high pressure to the fluidin the cylinder A and increasing the hydrostatic pressure upon piston Cto complete the full action of the compression-plate D. At the end ofthe forward stroke of the piston hin pump H, at the highest degree offluid-pressure, sufficient to overcome the resistance of the spring t2in the cylinder I, the pressure of the fluid in said cylinder causes thepistou 't' to move forward and the piston-rod t to partially rotate thedisk K, which action pushes upon rod 705 and crank g7 on the valve-stemg6 and closing the branch pipe g4 and opening the pipe G for the passageof the uids to the forward end of cylinder A, and at the same time therod 7a2 draws upon the crank f6 of the valve-stem f5 and closing thesuction-pipe F forward of the valve and opening the passage for thefluid through the branch pipe f3 to the pump E, the return of piston t'in cylinder I being retarded sufficiently to allow pump E to eX- haustcylinder A in rear of piston C and simultaneously fill the front end ofsaid cylinder. Before the lever M is operated to stop the action of pumpH the lever M is operated to set in motion the pump E, and during theaction of the spring ft2 in the cylinder I to force the piston t' towardthe rear end of the piston, which occurs as fast as the leakage ispermitted through the small opening h1", the pump H draws its quantityof iiuid from the forward end of the cylinder as the supply is forcedthrough the pipe G from the pump E to force the piston C to the rear endof cylinder A, thereby utilizing its supply from the fluid-supply fromlthe pump E without waste and during the reuse by suction and supply ofthe fluid bythe pump E in cylinder A without waste:

The apparatus in its capability of developing great power of compressionis an efficient factor in compressing hay or cotton or in lifting loads,in which case the compressioncylinder may be arranged in a verticalposition. Other well-known forms of power than an engine may be employedto operate the main-line shaft., and well-known means employed 'tointermittently check the action of the pumps.

Such other modifications may Ibe employed. as are within the scope ofthe invention.

vIoo

IIO

IIS

Having fully described 1ny invention, what I now claim as new, anddesire to secure by Letters Patent, is-

l. In a hydrostatic press,presscylinder and its piston, said cylinderhaving separate induction and eduction openings upon opposite sides andat each end and normally closed openings for the supply of fluid to thecylinder, a double-acting suction and forcing pump having eductionandinduction openings upon the respective opposite sides and at theforward and rearends, separate suction and supply conductors for thefluid on opposite sides of said press-cylinder and the said doubleactingsuction and forcing pump and closed at one end, branch pipes connectedwith said fluid suction and supply conductors and also with therespective eduction and induction openings to said pump, and branchpipes connected with the suction and supply conductors, and also withthe respective induction and eduction openings to said press-cylinder,means for operating said pump, and threeway valves in the supply andsuction pipes at the junction of the branch pipes communieating with therear end of the press-cylinder, and means for operating said valvesautomatically.

2. Inahydrostatic press,presscylinder and its piston, said cylinderhaving separate eduction and induction openings upon opposite sides andat its forward and rear ends and normally closed openings for the supplyof the fluid to the cylinder, a double-acting suction and forcing pumphaving separate eduction and induction openings upon opposite sides andat its forward and rear ends, means for operating said pump, separatesuction and supply conductors on opposite sides of the press-cylinder,and said pump closed at one end, branch pipes connected with therespective eduction and induction openings to said press-cylinder andthe forward ends of the respective suction and supply conductors, andbranch pipes connected with said rear ends of said suction and supplyconductors and the respective eduction and induction openings to saidpump, three-way valves in the suction and supply conductors, at thejunction of the branch pipes leading to the rear end of thepress-cylinder, and valvestems to said valves, means for operating saidvalve-stems and said three-way Valves sim ultaneously, and ahigh-pressure pump and its conductor connected with the press-cylinder.

3. In a hydrostatic press, the combination with a press-cylinder havingduplex eduction and induction openings upon opposite sides, and with thepiston ot' a piston rod or plunger, a compressing-plate, a double-actinglowpressure suction and forcing pump having duplex eduction andinduction openings upon opposite sides, and separate suction and supplypipes on each side of the said press-cylinder extending upon both sidesof said pump and connected with the respective duplexinduction andeduction openings to said presscylinder and said pump, means forsupplying said press-cylinder and said pump with fluid,and ahigh-pressure pump having induction and eduction openings, and pipesconnected therewith, one of which is connected with the eduction-openingto said pump and provided with a check-valve adjacent thereto, and alsoconnected with the rear end of the press-cylinder, and the other pipebeing connected with the induction-opening to said force-pump and alsoconnected with the front end of said press-cylinder, a check-valve insaid pipe, means for operating said low-pressure and high-pressure pumpsalternately, and three-way valves in the suction and supply pipes to thepress-cylinder.

4. In a hydrostatic press the combinationwithapress-cylinderhavingduplexinduction and eduction openings at theforward and rear ends, a piston and a piston-rod, branch pipes connectedwith said duplex induction and eduction openings, and suction and supplypipes on opposite sides of the cylinder connected with the branch pipes,three-way valves in the suction and supply pipes at the junction of thebranch pipes leading to the rear end of the press-cylinder, crank-rodsconnected With said three-way valves, means for forcing the Huid in thesupply and drawing of the fiuid from the press-cylinder, a pivoted diskon the press-cylinder, rods pivotally connected therewith, and also withthe crankrods operating said three-Wayvalves, a fluidoperated cylinderon the press-cylinder, apiston and a piston-rod eccentrically connectedwith said disk, a spring acting to force the piston in one direction anda fluid-pipe connected with the other end, and means for forcing theHuid through said pipe.

5. The combination in a hydrostatic press with the press-cylinder havingduplex induction and eduction openings at the forward and rear ends of apiston a piston-rod and a compressing-plate, a double-acting suction andforcing pump having duplex induction and eduction openings, separatesuction and supply pipes upon each side of said press-cylinder -andextending upon each side of said pump, branch pipes connected with thesaid suction and supply pipes and with the duplex ed uction and induction openings to said presscylinder and said pump, check-valves in thebranch pipes leading to said pump and three- Way valves in the suctionand supply pipes at the junction of the branch pipes leading to the rearend of the press-cylinder, and crankrods operating said valves, avalve-releasing cylinder on the press-cylinder having a leakopening, apiston and a piston-rod, a spring within said cylinder actuating saidpiston in one direction, and a high-pressure-fiuid-forcing pump and aconductor of the fluid connected with said pump and also with saidvalve-releasing cylinder upon the opposite side of the piston havingsaid spring, and a IOO IIO

check-valve in said conductor, a separate pipe leading from theinduction-opening to said pump to the forward end of lshepress-cylinder, a disk on the press-cylinder and rods pivotallyconnected therewith and also pivotally connected with the crank-rodsoperating the three-Way valves, and means substantally as described for'operating said doubleacting and seid high-pressure pumps alternately.

WILLIAM D. BUTT. Vitnesses:

JOHN T. MARSHALL, CLARENCE F. MEAD.

